单晶高温合金表面缺陷焊接修复的研究进展
郎振乾, 叶政, 杨健, 黄继华

Research Progress of Repair Technology for Surface Defects of Single Crystal Superalloy
LANG Zhenqian, YE Zheng, YANG Jian, HUANG Jihua
图3 不同冷却速度条件下TMS-75单晶高温合金TIG焊修复后形貌[20]
Fig.3 Optical micrograph of spot welds made on TMS-75 single-crystal nickel-base superalloy under (a) a rapid cooling condition and (b) a slow cooling condition